CN214474648U

CN214474648U - Pressure balancing device for ocean wet chemical instrument cabin

Info

Publication number: CN214474648U
Application number: CN202120687648.6U
Authority: CN
Inventors: 白强; 邹妍; 于慧彬
Original assignee: Institute of Oceanographic Instrumentation Shandong Academy of Sciences
Current assignee: Oceanographic Instrumentation Research Institute Shandong Academy of Sciences; Institute of Oceanographic Instrumentation Shandong Academy of Sciences
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-10-22
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a wet chemical instrument cabin pressure equaliser in ocean, the device include the instrument cabin, set up reaction tank, syringe pump and reagent bag in the instrument cabin, be provided with the inlet tube and the exhaust pipe with the syringe pump intercommunication on the instrument cabin, reaction tank and reagent bag all are connected with the syringe pump through the pipeline, the instrument cabin still is equipped with the pressure balance bag, the pressure balance bag passes through the pipeline and is connected with the syringe pump, the instrument cabin outer wall sets up the water pressure detector, the instrument cabin inner wall sets up cabin pressure detector and controller, water pressure detector, cabin pressure detector, syringe pump all are connected with the controller electricity. The utility model discloses a device can keep the under-deck external pressure balance, prevents that the under-deck from intaking, guarantees that the instrument both can normally work in shallow water region, also can work in the deep water region.

Description

Pressure balancing device for ocean wet chemical instrument cabin

Technical Field

The utility model relates to a wet chemistry in ocean field, in particular to wet chemistry instrument cabin pressure equaliser in ocean.

Background

When the marine wet chemical instrument measures in seawater, the injection pump injects the seawater into the reaction tank 2 from the water inlet pipe 5, and injects the reagent into the reaction tank 2 from the reagent bag 4, and the seawater and the reagent are subjected to chemical reaction in the reaction tank 2. After the reaction is completed, the injection pump 3 discharges the waste liquid from the waste discharge pipe to the outside of the instrument chamber 1. Because the reagent reduces, and the air pressure in instrument cabin 1 reduces, and the instrument cabin produces the negative pressure promptly, because there is the negative pressure during next measurement, syringe pump 3 needs bigger power just can inject the reagent into the reaction tank, and follow-up measurement negative pressure can be bigger and bigger, finally leads to the syringe pump can not inject the reagent into the reaction tank, leads to the instrument to stop work.

In order to eliminate negative pressure when working in shallow water (water depth less than 5 m), the prior method is to arrange a vent pipe 7 at the end of the instrument chamber, and when the instrument measures the consumed reagent to generate negative pressure each time, the air outside the chamber enters the chamber through the vent pipe to eliminate the negative pressure, so that the instrument can work normally, as shown in fig. 1. However, this brings about the following problems: 1. sometimes, the vent pipe is accidentally immersed in water, so that water enters the cabin to damage the instrument; 2. air will carry water vapor into the instrument chamber to produce condensate which can damage the instrument.

When the device works in a deep water area (the water depth is more than 5 meters), an air inlet pipe cannot be arranged due to the water flow effect and the difficulty in installation, negative pressure cannot be eliminated at this time, in addition, the injection pump discharges waste towards the outside of the cabin during each measurement, the injection pump not only needs to overcome the negative pressure in the cabin but also needs to overcome the water pressure, and the injection pump cannot work when the water depth exceeds a certain range, so that the device cannot work. So that the existing marine wet chemical instruments cannot work in deep water.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a wet chemical instrumentation cabin pressure equaliser in ocean to reach and keep the under-deck external pressure balanced, prevent that the under-deck from intaking, guarantee the purpose of the normal work of instrument.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a wet chemical instrument cabin pressure equaliser in ocean, includes the instrument cabin, set up reaction tank, syringe pump and reagent bag in the instrument cabin, be provided with the inlet tube and the exhaust pipe with the syringe pump intercommunication on the instrument cabin, reaction tank and reagent bag all are connected with the syringe pump through the pipeline, still be equipped with the pressure balance bag in the instrument cabin, the pressure balance bag passes through the pipeline and is connected with the syringe pump, the instrument cabin outer wall sets up the water pressure detector, instrument cabin inner wall sets up cabin pressure detector and controller, water pressure detector, cabin pressure detector, syringe pump all are connected with the controller electricity.

In the scheme, the inner wall of the instrument cabin is provided with the dehumidifying and drying layer.

In the above embodiment, the reagent pack includes a plurality of reagent packs.

In the scheme, two layers of sealing rings are arranged at the joint of the water inlet pipe, the waste discharge pipe and the instrument cabin.

Through the technical scheme, the utility model provides a wet chemical instrumentation cabin pressure equaliser in ocean has following beneficial effect:

the utility model discloses make the instrument compartment not have with atmosphere UNICOM, during the breather pipe probably accident submerged in water when having solved instrument compartment and atmosphere UNICOM, lead to the problem that the under-deck intake and damaged the instrument, the air will carry vapor to get into the instrument compartment and produce the comdenstion water when also having solved instrument compartment and atmosphere UNICOM simultaneously, and the comdenstion water can damage the problem of instrument to make this device can work in shallow water region.

Additionally, the utility model provides an injection pump not only will overcome the under-deck negative pressure and still will overcome water pressure, the depth of water surpasss the problem that the injection pump can not work and lead to the instrument can not work of certain limit, consequently, this device also can work in the deep water region.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic structural diagram of a pressure balancing device of a marine wet chemical instrument chamber in the prior art;

fig. 2 is a schematic view of a pressure balancing device of an ocean wet chemical instrument chamber disclosed by the embodiment of the utility model.

In the figure, 1, an instrument chamber; 2. a reaction tank; 3. an injection pump; 4. a reagent bag; 5. a water inlet pipe; 6. a waste discharge pipe; 7. a breather pipe; 8. a pressure balancing bag; 9. a water pressure detector; 10. a cabin pressure detector; 11. a controller; 12. a desiccant drying layer; 13. and (5) sealing rings.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The utility model provides a wet chemical instrument cabin pressure equaliser in ocean, as shown in fig. 2, including instrument cabin 1, set up reaction tank 2 in the instrument cabin 1, syringe pump 3 and reagent bag 4, be provided with the inlet tube 5 and the exhaust waste 6 with 3 intercommunications of syringe pump on the instrument cabin 1, reaction tank 2 and reagent bag 4 all are connected with syringe pump 3 through the pipeline, still be equipped with pressure balance bag 8 in the instrument cabin 1, pressure balance bag 8 passes through the pipeline and is connected with

syringe pump

3, 1 outer wall in instrument cabin sets up

water pressure detector

9, 1 inner wall in instrument cabin sets up cabin pressure detector 10 and controller 11, water pressure detector 9, cabin pressure detector 10, syringe pump 3 all is connected with 11 electricity in the controller.

During reaction, seawater is injected into the reaction tank 2 through the water inlet pipe 5 by the injection pump 3, the inlet and the outlet of the injection pump 3 are switched, the reagent in the reagent bag 4 is injected into the reaction tank 2, after the reaction is finished, the inlet and the outlet of the injection pump 3 are switched, and then the waste liquid is discharged out of the instrument chamber 1 through the waste discharge pipe 6. When the reagent in the reagent bag 5 is used up, the pressure in the chamber becomes small, and the chamber pressure detector 10 detects the pressure and transmits a signal to the controller 11.

The inner wall of the instrument chamber 1 is provided with a dehumidifying and drying layer 12, the dehumidifying and drying layer 12 can be composed of packaging drying agents, and when a small amount of water vapor exists in the instrument chamber 1, the water vapor can be removed through the dehumidifying and drying layer 12.

The reagent bag 4 includes a plurality of reagent bags each containing a different reagent.

In this embodiment, two layers of sealing rings 13 are arranged at the joints of the water inlet pipe 5 and the waste discharge pipe 6 and the instrument chamber 1, so that the joints can be sealed.

The pressure balancing method for the marine wet chemical instrument cabin comprises the steps that the water pressure detector 9 detects the external water pressure of the instrument cabin 1, the cabin pressure detector 10 detects the internal cabin pressure of the instrument cabin 1 and transmits signals to the controller 11 respectively, when the cabin pressure detector 10 detects that the internal cabin pressure is smaller than the external water pressure, the controller 11 controls the injection pump 3 to inject seawater into the pressure balancing bag 8, when the internal cabin pressure is equal to the external water pressure, water injection is stopped, the internal and external pressure balance of the instrument cabin 1 is kept, and the injection pump 3 can work normally.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a wet chemical instrument cabin pressure equaliser in ocean, includes the instrument cabin, set up reaction tank, syringe pump and reagent bag in the instrument cabin, be provided with the inlet tube and the exhaust waste pipe with the syringe pump intercommunication on the instrument cabin, reaction tank and reagent bag all are connected with the syringe pump through the pipeline, a serial communication port, the instrument cabin still is equipped with the pressure equalising bag, the pressure equalising bag passes through the pipeline and is connected with the syringe pump, the instrument cabin outer wall sets up the water pressure detector, instrument cabin inner wall sets up cabin pressure detector and controller, water pressure detector, cabin pressure detector, syringe pump all are connected with the controller electricity.

2. The marine wet chemical instrument chamber pressure equalizing device of claim 1, wherein the inner wall of the instrument chamber is provided with a dehumidifying and drying layer.

3. The marine wet chemical instrumentation pod pressure equalizing device of claim 1, wherein the reagent bag comprises a plurality of reagent bags.

4. The marine wet chemical instrument chamber pressure equalizing device of claim 1, wherein two layers of sealing rings are arranged at the connection of the water inlet pipe and the waste discharge pipe with the instrument chamber.